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    <p>I have an undergraduate degree from a cheap "mass market" US university, so I'd say I fall into the middle of the user intelligence (or at least education) scale :) I've been dabbling with Scala for just a few months and have worked on two or three non-trivial apps.</p> <p>Especially now that IntelliJ has released their fine IDE with what IMHO is currently the best Scala plugin, Scala development is relatively painless: </p> <ul> <li><p>I find I can use Scala as a "Java without semicolons," i.e. I write similar-looking code to what I'd do in Java, and benefit a little from syntactic brevity such as that gained by type inference. Exception handling, when I do it at all, is more convenient. Class definition is much less verbose without the getter/setter boilerplate.</p></li> <li><p>Once in a while I manage to write a single line to accomplish the equivalent of multiple lines of Java. Where applicable, chains of functional methods like map, fold, collect, filter etc. are fun to compose and elegant to behold.</p></li> <li><p>Only rarely do I find myself benefitting from Scala's more high-powered features: Closures and partial (or curried) functions, pattern matching... that kinda thing.</p></li> </ul> <p>As a newbie, I continue to struggle with the terse and idiomatic syntax. Method calls without parameters don't need parentheses except where they do; cases in the match statement need a fat arrow ( <code>=&gt;</code> ), but there are also places where you need a thin arrow ( <code>-&gt;</code> ). Many methods have short but rather cryptic names like <code>/:</code> or <code>\:</code> - I can get my stuff done if I flip enough manual pages, but some of my code ends up looking like Perl or line noise. Ironically, one of the most popular bits of syntactic shorthand is missing in action: I keep getting bitten by the fact that <code>Int</code> doesn't define a <code>++</code> method.</p> <p>This is just my opinion: I feel like Scala has the power of C++ combined with the complexity and readability of C++. The syntactic complexity of the language also makes the API documentation hard to read.</p> <p>Scala is very <em>well thought out</em> and brilliant in many respects. I suspect many an academic would love to program in it. However, it's also full of cleverness and gotchas, it has a much higher learning curve than Java and is harder to read. If I scan the fora and see how many developers are still struggling with the finer points of Java, <strong>I cannot conceive of Scala ever becoming a mainstream language</strong>. No company will be able to justify sending its developers on a 3 week Scala course when formerly they only needed a 1 week Java course.</p>
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    1. POIs the Scala 2.8 collections library a case of "the longest suicide note in history"?
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    1. USCarl Smotricz
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    1. COAfter one week of a Java course, you're ready to be let loose on some serious software development! I don't think Scala is trying to take Java's place, or ever thinks it will be the next Java. But I do think they can aim to get the success of, say, Ruby or Python which have a significant user base. The question is, "have they screwed this up?"
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    2. COThanks for making my post prettier :) Your question concerned some details added to the pre-existing picture. If I weren't fully exerting myself trying to understand the 2.7 feature set, I might have been able to grasp the finer points. My personal take is that the "update" of the collections API was just adding a little more insult to some already pretty serious injuries. Clever folks like yourself will manage, less clever people like self may have already run away screaming.
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    3. CORuby: No. Not unless someone comes up with a Scala app that approaches the lethality of Rails. Lift is not that app; I bought the book but gave up on trying to understand it. Python: No. Scala is not nearly as "friendly" as Python. It's also later to the party.
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